IBM M841, User Manual

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1
2: Mainboard Installation
Install the Mainboard
Install the mainboard in a system chassis (case). The board is an
ATX size mainboard with a twin-tier of I/O ports. You can install
this mainboard in an ATX case. Ensure that your case has an I/O
cover plate that matches the ports on this mainboard.
Install the mainboard in a case. Follow the instructions provided by
the case manufacturer using the hardware and internal mounting
points on the chassis.
Connect the power connector from the power supply to the
ATX_PWR connector on the mainboard.
If there is a cooling fan installed in the system chassis, connect the
cable from the cooling fan to the
SYSFAN fan power connector on
the mainboard.
Connect the cable from the PC speaker to the
SPK1 header on the
mainboard.
Connect the case switches and indicator LEDs to the
SW1 header.
If there are a headphone jack or/and a microphone jack on the front
panel, connect the cables to the
AUDIO1 header on the mainboard.
See the illustrations below for the guide to the SW1 and AUDIO1
headers pin assignments.
13
SYSFAN
ATX_PWR
AUDIO1
SPK1
1
SW1
Suspend LED P2-4 HDD LED P1-3
Reset Switch P5-7
Power Button P6-8
1 2
AUDIO1
MIC 1
MIC-P 3
FPOUT-R 5
NC 7
FPOUT-L 9
2 GND
4 VCC
6 RET-R
8 Key
10 RET-L
SW1
1